CIRCUITO PARA CONFERENCIAS PARA CENTRAIS TELEFONICAS,申请号BR19760004885-传众专利搜索

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发明名称	CIRCUITO PARA CONFERENCIAS PARA CENTRAIS TELEFONICAS
摘要
申请公布号	BR7604885(A)	申请公布日期	1977.08.09
申请号	BR19760004885	申请日期	1976.07.28
申请人	SOC IT TELECOMUNICAZIONI SIEMENS SPA	发明人	VALSECCHI A
分类号	H04M3/56;(IPC1-7):H04M3/56	主分类号	H04M3/56
代理机构		代理人
主权项
地址

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